Velocity-time graphs
2 marks · NormalA train slows from 24 m/s to rest in 30 s. Calculate its acceleration.
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-0.8 m/s^2 (±0.05)
Also accept: -0.80
Common mistakes: using positive acceleration
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Marking points
M1 · 1 mark · Applies a = (0 − 24)/30 correctly.
A1 · 1 mark · Final answer: -0.8 m/s^2. Accept rounding within 0.05.
Worked solution